<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="../js/vue.js"></script>
</head>

<body>
  <div id="app">
    <!-- <h2 :style="{key(css属性名):value(属性值)}">{{message}}</h2> -->


    <!-- <h2 :style="{'font-size':'50px'}">{{message}}</h2> -->
    <!-- '50px'必须加上单引号,否则是当做一个变量去解析 -->
    <!-- <h2 :style="{fontSize:'50px'}">{{message}}</h2> -->

    <!-- finalSize当成一个变量来使用 -->
    <h2 :style="{fontSize:finalSize + 'px',color:finalColor}">{{message}}</h2>



  </div>

  <script>
    var vm = new Vue({
      el: '#app',
      data: {
        message: 'hello',
        finalSize: 100,
        finalColor: 'red'
      },
      methods: {}
    });
  </script>
</body>

</html>